Fit2Function exercise scientist Natalie Lambeth is working with Peel High School year 12 student Jayden Grainger on the Walk for Autism event.

Ms Lambeth trains Jayden, who has "a few physical and cognitive disabilities", and they work on his "physical functions that stem to cardio, activities and daily living, mental health, recreation".

"I've been working with Jayden for two years now and he approached me and asked if we wanted to do [the walk]," she said.

"He has reduced lung capacity so it's a good challenge for him."

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They'll be walking 10,000 steps this week as part of the challenge, which raises funds to support people on the autism spectrum.

The pair started the walking on Sunday, and will finish up this Sunday.

"He does three sessions a week [at Fit2Function] so within those sessions it'll predominantly be walking then I'll see him on Saturday and Sunday and we'll walk together to get it done," Ms Lambeth told the Leader.

Eighteen-year-old Jayden is "ready for the challenge".

He's been getting his steps up during school time, and on the treadmill, rower, and out for walks.

So far they've raised nearly $1200 for the cause through the support of friends, family, and the Fit2Function community.

Locals can donate by visiting the Walk for Autism website and searching 'Nat & Jayden'.

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